Sintesis In-situ ZIF-8/Kitosan Serta Peningkatan Kinerjanya Sebagai Adsorben Remazol Brilliant Blue R dalam Air

Yasin, M. (2019) Sintesis In-situ ZIF-8/Kitosan Serta Peningkatan Kinerjanya Sebagai Adsorben Remazol Brilliant Blue R dalam Air. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 01211540000079-Undergraduate_Theses.pdf Restricted to Repository staff only Download (3MB) | Request a copy

Abstract

Sintesis in situ ZIF-8 dengan penambahan kitosan berhasil dilakukan pada suhu ruang selama 24 jam menggunakan pelarut air. Variasi penambahan kitosan adalah 30%, 60%, 120%, dan 300% terhadap berat ZIF-8, dengan padatan hasil sintesis masing-masing dinotasikan sebagai C30/ZIF-8, C60/ZIF-8, ZIF-8/C120, dan ZIF-8/C300. Material hasil sintesis dikarakterisasi menggunakan X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), dan scanning electron microscopy–energy dispersive X-ray (SEM-EDX). Modifikasi ZIF-8 dengan kitosan bertujuan untuk meningkatkan jumlah sisi aktif pada material komposit. Difraktogram XRD dan spektra FTIR seluruh padatan hasil sintesis menunjukkan pola yang sesuai dengan ZIF-8 referensi. Hasil karakterisasi SEM menunjukkan bahwa ZIF-8 hasil sintesis memiliki morfologi dodekahedron rombik, sedangkan penambahan kitosan menyebabkan perubahan morfologi permukaan. Kapasitas adsorpsi tertinggi terhadap Remazol Brilliant Blue R diperoleh pada ZIF-8/C120, yaitu sebesar 384,6153 mg/g pada waktu kontak 60 menit dan pH larutan 7. Adsorpsi Remazol Brilliant Blue R pada ZIF-8 dan seluruh komposit ZIF-8/kitosan mengikuti kinetika reaksi orde dua semu serta sesuai dengan model isoterm adsorpsi Langmuir.
===================================================================================================================================
The in situ synthesis of ZIF-8 with chitosan addition was successfully carried out at room temperature for 24 hours using water as the solvent. Chitosan was added at 30%, 60%, 120%, and 300% relative to the weight of ZIF-8, and the resulting solids were designated as C30/ZIF-8, C60/ZIF-8, ZIF-8/C120, and ZIF-8/C300, respectively. The synthesized materials were characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX). The incorporation of chitosan into ZIF-8 was intended to increase the number of active sites in the composite materials. XRD patterns and FTIR spectra of all synthesized samples were consistent with those of the reference ZIF-8. SEM observations revealed that the synthesized ZIF-8 exhibited a rhombic dodecahedral morphology, whereas the addition of chitosan altered the surface morphology. The highest adsorption capacity for Remazol Brilliant Blue R was achieved by ZIF-8/C120, reaching 384.6153 mg/g at a contact time of 60 minutes and a solution pH of 7. The adsorption of Remazol Brilliant Blue R on ZIF-8 and all synthesized ZIF-8/chitosan composites followed a pseudo-second-order kinetic model and was well described by the Langmuir adsorption isotherm.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	ZIF-8, Komposit, Kitosan, Remazol Brilliant Blue R, Adsorpsi
Subjects:	Q Science > QD Chemistry Q Science > QD Chemistry > QD117.S64 Spectrophotometry Q Science > QD Chemistry > QD471 Chemical compounds - Structure and formulas Q Science > QD Chemistry > QD547 Flocculation, precipitation, adsorption, etc. Q Science > QD Chemistry > QD75.2 Chemistry, Analytic
Divisions:	Faculty of Mathematics and Science > Chemistry > 47201-(S1) Undergraduate Thesis
Depositing User:	M. Yasin
Date Deposited:	20 Jul 2026 06:09
Last Modified:	20 Jul 2026 06:09
URI:	http://repository.its.ac.id/id/eprint/69124

Actions (login required)

View Item